Rod-coupling



(No Model.)

B. M. HOAGLAND. ROD COUPLING.

No. 534,507. 7 v v Patnted'Feb.1 9,1895.

UNIT D *1 STATES PATENT O FICE.

ELLERY M. IIoAGLAND, F SALINAS, CALIFORNIA.

ROD-COUPLING.

SPECIFICATION forming part of Letters Patent No. 534,507, dated February19, 1 895;

' Application filed November 8,1894- Serial Not 528,232. (No model.)

To all whom it may concern; i

- Be it known that I, ELLERY lvLHoAGLAND, a citizen of the UnitedStates, residing at Salinas, Montercy county, State of California, haveinvented an Improvement in Rod-Couplings; and Ihereby declare thefollowing to be a f nll; clear,and exact description of. the same.

. r My invention relates to that class of couplings for joining the rodsof well boring apparatus especially, though applicable to connectingother'rods such as the rods of windmills anddeep well pumps.

' My invention consists in the novel construcftion and arrangement ofthe coupling which I shall herein fully describe and specifically claim.i

The object of my invention is to provide a coupling for rods, which canbe quickly made and broken, and while coupled-will remain absolutelysecure, thereby especially" adapting the device for the joining of allrods, and

particularly the rods used in well boring. In

. accurate and positive one, precluding all dan-' the last named work,it is required that the tool below he often withdrawn to discharge andto clear it. This, after it has gone down a. considerable depth, is amatter of time, as it is necessary to'uncouple the sections of the rodas the device is hauled up, and as it is put downagain to couple thesections together once more. Itis, therefore, of the'greatest importancethat the coupling and uncoupling be done with great facility andrapidity; but

at the same time the coupling should be an ger of becoming accidentallyuncoupled, and one which will permit both the churning action and the"rotary movement without lost I slightest.

coupling, the lower part being shown in vertical section,

' end of one sectionA of the rod. "It is also motion or without yieldingor giving in the All these results are attained by my cpupling which-Ishall now describe in connection with the accompanying drawings to whichreference is hereby made.

Figure 1 is a vertical section of the coupling completed. Fig. 2 is aperspective view of the two'parts 'of the couplinm. Fig. 3 is a viewshowingjhe two parts in 'the act of and the. other in elevation.

' The male coupling consists ofa piece having a'shank or stein'a bywhich it is connected, as by means of welding oroth erwise,-with theformed ,with a body 0/ having a thickness less than'th'at of the stem orshank, but of approximately the same portion, in one side or edgethereof, is made 'the notch a its standing wall being on a slight curve,while its base is slightly inclined, though this cu'rveand incline arenot absolutely essential as they may be both straight surfaces,but Iprefer them'as "here shown. -The female coupling is formed with a stemoror otherwise, in the end of another section B of rod, as in the oppositeend of the first section.

This coupling body. portion 6', the end and sides of the cavitybeing'open. One side of the body, near its end, is provided with adirecting wall b while the other side, and at apoint a-little lowerdown, is provided with a stop wall I), the inner surface of which isbeveled or inclined either on a curve or in a straight plane as may bedesired.

The .two sections of the coupling are fitted together by turning themale coupling at such that it will passbetween the lower end of thedirecting wall b ,and the inclined inner surface of the stop wall D ofthe female coupling. After it has passed down in this space until thebase of thenotch a? in the male coupling has passed the lower end of thestop wall of the female coupling, the former coupling is then turnedinto line with the latter coupling,'in which position the bodies of thetwo couplings will be flush with each other ou each side, and the baseof the stem of one will rest on the end of the body of the other, the

of the cavity of the other, will fully engage the stop wall I) and thusthe coupling is complete.

'lo uncouple, the male coupling must be turned to the same angle atwhich it entered, and it may then be withdrawn. It will be seen thatthis operation can be ajvery rapid one, and in the particular use whichI have mentioned, namely, that of connecting the rods of well boringapparatus, it is evident to nearly the mouth of the casing, thecoupwidth.- In this'body shank b by which it is secured, as by welding Iis provided with a hollowed end of the body of'one will rest in the basewhile the notch a that in coupling together one'section of --od.. with apreceding one which has been lowered I Patent, is-

,is permanent, as the two will then descend into the small area ordiameter of the casing in which it is impossible for the male couplingto turn to the angle for withdrawal, and, therefore, as long as the rodsremain in the casing, the couplings cannot come apart;

The various stops'and limitations of the two parts of the coupling aresuch that all the necessaryrotary motion maybe given to the rods,andalso-the churningactionwit-hout in the least disturbing the couplingconnection. Nor is thereany lost motion and the parts easily draw toplace.

Having thus described my invention, what lclaim asnew, and desire tosecure by Letters 1. A rod coupling consisting of a section havingashank reduced in thickness and pro- ,vided with a notch in one of itsedges, a second section having a hollowed or recessed body portion openat both sides with adirecting Wall b closing a portion of'the opening atone side, and a stop wallclosing a portion of the opening at theopposite side, and disposed in a'plane below that of the directing wall,said stop wall adapted to engage the notched portion of the first namedsection.

2. A rod coupling consisting of a, section having a shank reduced inthickness with a notch formedin one'edge, a second section receased inthe direction of its lengthwith the recess opening through the top andtwo opposite'sides of the section, a directing wall at the upper portionof oneside of the second section and a stop 'wallat the opposite side ofthe section below the plane of the directing wall, having a beveled orinclined inner surface adapted to engage the notch in the edge 40 of thefirst named section.

In witness whereof I'have hand. v

' ELLERY M., HOAGLAND.

Witnesses:

S. 1-1. NOURSE,

WM. F. BooTH.

hereunto set my

